diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2004-11-21 11:42:09 +0000 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2004-11-21 11:42:09 +0000 |
| commit | b640e88eff2f0c60d1604382c15a147a2373f6d1 (patch) | |
| tree | f7d8c9841b3b9163b5c13f49f44c27015a0f2ec6 /sysdeps/generic/w_tgamma.c | |
| parent | f2fad0ae26d274bd203ba350a66b6f2bec3f6740 (diff) | |
2004-11-20 Jakub Jelinek <jakub@redhat.com>
* sysdeps/ieee754/k_standard.c: Document code 50.
(__kernel_standard) <case 50>: Avoid raising div-by-zero
exception again.
2004-11-19 H.J. Lu <hongjiu.lu@intel.com>
[BZ #552]
* math/libm-test.inc (tgamma_test): Update tgamma (0) and
tgamma (-0).
* sysdeps/generic/w_tgamma.c (__tgamma): Properly handle
|x| == 0.
* sysdeps/generic/w_tgammaf.c (__tgammaf): Likewise.
* sysdeps/generic/w_tgammal.c (__tgammal): Likewise.
* sysdeps/ieee754/dbl-64/e_gamma_r.c (__ieee754_gamma_r): Likewise.
* sysdeps/ieee754/flt-32/e_gammaf_r.c: Likewise.
* sysdeps/ieee754/ldbl-128/e_gammal_r.c: Likewise.
* sysdeps/ieee754/ldbl-96/e_gammal_r.c: Likewise.
* sysdeps/ieee754/k_standard.c (__kernel_standard): Handle
tgamma (0) and tgamma (-0).
Diffstat (limited to 'sysdeps/generic/w_tgamma.c')
| -rw-r--r-- | sysdeps/generic/w_tgamma.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sysdeps/generic/w_tgamma.c b/sysdeps/generic/w_tgamma.c index 2adbc2e14d..6e34b62be4 100644 --- a/sysdeps/generic/w_tgamma.c +++ b/sysdeps/generic/w_tgamma.c @@ -39,8 +39,10 @@ static char rcsid[] = "$NetBSD: w_gamma.c,v 1.7 1995/11/20 22:06:43 jtc Exp $"; if(_LIB_VERSION == _IEEE_) return y; if(!__finite(y)&&__finite(x)) { - if(__floor(x)==x&&x<=0.0) - return __kernel_standard(x,x,41); /* tgamma pole */ + if (x == 0.0) + return __kernel_standard(x,x,50); /* tgamma pole */ + else if(__floor(x)==x&&x<0.0) + return __kernel_standard(x,x,41); /* tgamma domain */ else return __kernel_standard(x,x,40); /* tgamma overflow */ } |